Type-writing machine.



G. E. TOMLINSON. TYPE WRITING MACHINE.

APPLIOATION IILED 00118, 1906.

920,221. Patented y 4-, 1909.

r FIQL. X1650 6 m L 1T7?" I If a 21 21 57 5 s 5 4". "16 |5 A \1 V/////A \7/. 12 i i 1 l i l 1 FIG! l 5 *:5' l 3W A a 4 f Q40 ITNEEEES: l NVENTDR= T A -zmmm7 Hes ATTEIRN UNITED s'ra riis CHARLES'E. TOMLINSON, OF SYRACUSE, NEW YORK, ArE-Altih'QH 'lt) ALEXANDER '1. BROWN.

()l SYRACUSE, NEW YORK.

same side plate TYPE -WBITI'NG I /EAG'EHNE.

Specification of Letters Patent.

latented May at, 1909.

Application filed October 18, 1906. Seria No. (339,515.

My invention relates to typewriting mas chines and more particularly to means for guiding the type bar and also to repulsing means for causing the type bar to move ra )idly from the plat en alter eaeh imprint.

lhe object of my invention is to provide simple and ellieient means for the purposes stated.

TO the above and other ends whieh \'-.ill 3 hereinafter appear, my invention eonsists in the features of eonstrurtion, arrangements 1 of parts and eomhinations ol titYlt'tS set forth in the lolloxx'ing leseriptiou and par-- tieularly pointed out in the appended i-laims.

In the drawings, Figure l is an enlarged detail side elevatirni shoving a type bar and I mounted hanger e'r-nhodying my invention, a platen being shown diagrammatieally. Fig. 2 is a detail top plan view of the type. bar. Figs. 3 and 4 are detail transverse see tional views oi the type bar, the seetion being taken on the line ar n; of Fig. 13,-the views showing respectively the arrangen art of the parts just before and inst as the type bar reaches the printing position, and in -ooperation with the lixed guide on the hanger. Fig. 5 is an enlarged detail seriional YitBi corresponding to Fig. 4 but shoeing a Hindilied form of construction. mental-y side eleyatio'n of the modilied form of construction of type bar. V

The type bar, designated as a a hole h the relerenee numeral 1, eomprises a solid typebloek-earrying shank 2 to which side plates 33 and 3 are rivet-ed at 4. The side plates are preferably slightl resilient for purposes which will hereinafter more clearly appear. One of the side plates 3 is provided with an upwardly extending perforated ar 5 to which a rearwardly extending link may be connected for actuatiin the type bar. This 3 is a so provided witlran extension 6 which is bent transversely, as

shown in Fig. 2, and extends over to the op- 1 Fig. (i is a. frag lat rest, extends above the pivot 7 which unites t he type bar to its hanger 8 and serves to protect said pivot from falling dirt. Each hanger eonsists of a lint bar or niece of metal that lies her een th two side piates 3 and 3, and the pivot T eonsists oi a rivet passing i thr ugh said side plates and hanger and havi iug a working: lit in the latter. Each type .lmr han 'er 's reeeived m a slot 9 formed in the formu'd l'aee oi a type har segment 10. I. tli ended opening provided in the opposite walls of eaeh slot t) for the reeeption of a set serew ll. the inner end of which bears against the stem of its assoeiatr-d hanger 8 to seeure it in piaee in the segment.

Extending upwarrlhfrom eaeh hanger is a hoot-like abutment or guide 12 beveled on 1 both sides a til within the hook and at that portion oi said heel-1 a'hii-h eonstit'utes its 1 uorliih;: ;..rr. "the hill ol the hook extends kindly and the hool; 'nseli' opens toward rout of rhe ma hine {or eot'iperaiion with r a euznpaniea guidin and repulsing member net ohsrii. or prwrent an outward movem nt ol' the tor a hunted distanee as unheated in l F nal guiding and repulsmg niemher also peudently movabhr omprises two indeeoniaeis 0r disks it) supported on the p i and beveled on their ad "ent l'ar t t. and the outer sides oi" whieh bear against the side plates 3 and 3" oi the type bar. "The 'eonstrurtion is such that when {he ty e bar moves toward the printing point tin hook-like portion of the ahulment l1 will he reeeired between the heyeled l'ares oi ti ti on the type bar tilfiii. l hei'ore the type har rearhes the printing posi tion, as indicated in dotted tines in Fig. 1. \Yhen the t'r'lit imt has rerwhed this dotted iiue ltien the dists it) wouid he brought into eontart w th the hool slihe member as indv ted in l i r. 1;. i'urihermovementoi the type in. o the p position by the momentum t its printhn: trolie will cause 1 the disks it: t he wedged .ai against the beveled or wedge-like face thereof, and this ressure tends to force the type bar away from the platen as soon as pressure on the key is released. The devices also co-act to form a ty e bar guide which acts between the ivot and the free end of the bar to prevent a ateral deflection thereof and to bring about an accurate alinemcnt of the imprinted characters. By reason of the hookike guide 12 cooperating with the disks 16 in the manner described, there will also be a tendency to bring about a proper guiding of the type bar to prevent an undue movement thereof in a direction at right angles to the printing line should there be any lost motion at the pivotal connection between the type bar and hanger.

In other words, the cooperation of the devices before the type bar reaches the printin position not only tends to prevent a lateral deflection of the type bar from its proper path, but also tends to prevent a longitudinal movement of the bar from around its proper pivotal axis.

In Figs. 5 and 6 I have shown a modified form of construction embodying my invention. This form of the invention is the same as that previously described except that the pin 14 and conoidal disks or contacts 16' mounted thereon are omitted and conoidal contacts 18 are formed directly on the side plates 3* and 3 shown in Figs. 5 and 6; the contacts 18 being struck up from the body portions of the side plates and projecting toward each other. When a type bar reaches the dotted line position the conoidal contacts 18 will be brought into cooperation with the fixed abutment l2 and they will be forced away from each other against the s )ring tension of the side plates from which t ey are formed.

Various changes may be made without departing from the scope of my invention.

What I claim as new and desire to secure by Letters Patent, is

1. Ina typewriting machine, the combination of atype bar carrying a combined type bar guiding and repulsor member intcr1ncdiate its pivot and the free end of the type bar, and a type bar hanger carrying a guiding and repulscr member with which the combined type bar repnlser and guiding member on the ty )0 bar cor'jpcratcs during the last portion only of the stroke of the type bar.

2'. lir'a' typcwriting machine, the combination of a type bar having its hccl bifurcatml, a combined type bar guiding and rcpulsing member ontained between the walls of the type bar formed by the bifiu'cation therein, and a hanger roceivcd-in the bifurcation of the type bar and having a combined type bar rcpulsm'g and guiding member that cooperates with the guiding and repulsing member on the type bar at the last portion of the stroke of the type bar.

3. In a typewriting machine, the combination of a type bar and a hanger, one of said members being bifurcated to receive the other, the bifurcated member carrying two beveled contacts which are movable independently of each other and the other member carrying a beveled device that is brought into cooperation with said beveled contacts on the bifurcated member at the last part of the printing stroke of the type bar.

4. In a typewriting machine, the co1nbination of a type bar and a hanger, one of said members being bifurcated to receive the other, the bifurcated member carrying beveled contacts that are spring pressed toward each other and the other member carrying a beveled device that is brought into cooperation with said contacts and tends to separate them at the last part of the printing stroke of the type bar.

In a typewriting machine, the combina tion of a type bar and a hanger, one of said members being bifurcated to receive the other, the bifurcated member carrying'beveled contacts that are spring pressed toward each other by the arms of the bifurcated member and the other member carrying a hook-like beveled device that is brought into cooperation with said contacts and tends to separate them at the last part of the printing stroke of the type bar, whereby said contacts and device act as combined guides and repulsers.

6. ln a typewriting machine, the combination of a type bar and a hanger, one of said parts being bifurcated, the type bar and hanger having abutments that are brought into contact before the ty 0 bar reaches the printing position and the )ifurcated ortion exerting a lateral pressure between tie contacts which is effective as a rcpulser for the type bar.

7. In a typewritingmachine, tho combination of a type bar and a hanger, one of said members carrying two rcpulscr devices that move independently of the member that carries thorn and toward and away from each other, the other member cooperating with said repulser dex'iccs and tending to spread them apart before the type bar reaches the printing. position. r

S. in a typewriting machine, the combination of a type bar and a hanger, one of said members carrying two rcpulscr contacls that are bowled toward each other and move toward and away from each other, the other member being received between the contacts and cooperating therewith and lending to spread them apart before the typ bar reaches lhe printing position.

l). ,n a typewriting machine, the combination of a type bar, a hanger, a spring rcpulscr device carried by the type bar, and a rigid abutment'on the type bar hanger with which said spring repulser cooperates before the ment on the hanger with which said combined spring repulser device and guide cooperates before the ty e bar reaches the printing position to guic e the type bar and to effect a quick rebound thereof from the platen.

V 11. nation of a type bar, a hanger, a combined spring type ar guide and repulser device carried by said type bar, and a rigid abutment on the hanger with which said com bined s ring rcpu ser and guide cooperates before t e type bar reaches the printing position to gui e the type bar and to effect a quick rebound thereof from the platen, the workin face of one of said abutment and uide e ements being in the nature of a substantially V-shaped groove ment being substantially V-shaped to fit said groove. v

12. In a typewriting machine, the combination of a type bar, a hanger, a combined spring type ar guide'and repulser device carried by said type bar, and a rigid abutment on the hanger with which said combined s ring repulser and guide cooperates before t e type bar reaches the rintmg position to guit e the ty e bar and to effect a quickrebound thereof from the platen, the

, rigid abutment being formed .as a hook-like member beveled on its working face and the combined repulser and'guide being formed of disks beveled on their adjacent faces and spring ressed toward each other.

13. n a typewriting machine, the combination of a type bar, t io pivoted end portion of which comprises two parallel spring side plates, a hanger contained between said side plates and to which said type bar is pivoted,

a guide and repulscr between said spring side 14. In a typewriting machine, the

plates and by which pressure is exerted on the uide and rcpulser, and a fixed abutment on t e hanger with which said guide and re pulser cooperates at the last portion of the printing stroke.

combination of a type bar, the pivoted end )Ol'tlOll of which comprises two parallel side plates, a hanger contained between said side plates and to which said t pe bar is pivoted, two inde endently mova lc contact plates between said side plates, and a fixed abutment which contacts with and is received between the contact plates at the last portion of the printin stroke of the type bar.

'15. n a typ ewriting machine, the combi- In a typewriting machine, the comb1- and the other elenation of a type bar, the pivoted end ortion of which comprises two parallel side p ates, a hanger contained between said side plates and to which said type bar is pivoted, two in dependently movable contacts which are beveled on their adjacent sides and against which the side plates bear, and a fixed abutment that is received between said contacts at the last portion of the printing movement of the type bar and tends to spread said contacts a art.

16. n a typewriting machine, the combination of a type bar, the pivoted end portion of which comprises two parallel side plates, a hanger contained between said side plates and to which said ty e bar is pivoted, two independently movab e disks which are beveled on their inner sides and a ainst the outer sides of which the side lates fiear, a pin that extends between the sic e plates and on which the disks are supported, and a hook-like fixed abutment that is received between said disks at the last ortion of the printing movement of the type ar and tends to spread said disks apart against the pressure of said side plates.

17. In a typewriting machine, the combination of a type bar, the pivoted end portion of which comprises two parallel side plates, a hanger contained between said side plates and to'which said type bar is pivoted, two independently movable contact plates contained between the side plates and bearing against the same, and means which tend to separate said contact plates before the type bar reaches the printing position.

18. In a typewriting machine, the combination of a type bar and a han er, one of said members com rising two para lel side plates, and means w iich exert an impinging force against said side plates that tends to spread them apart before the type bar reaches the contacts and abutment for each type bar acting as a combined type bar repulscr and guidei Signed at the borough of Manhattan, city of New York, in the county of New York, and State of New York, this 16 day of October A. l). 1906.

CHARLES E. 'lOBILTNSON.

Witnesses:

E ,M'. WELLS, M. F; llANNwEBnn. 

